Arrangements for filmtransport, exposure locking and releasing, with flashlight-cube transport means and shutter locking means

ABSTRACT

In a camera with means for simultaneously locking and unlocking the film transport device and the exposure releasing mechanism, the disc-like transport handle has a plurality of tooth-shaped driver means which are engageable by a pin attached to a governing member for both the film transport device and the locking and unlocking device, further for the exposure-releasing mechanism and for means for a flash cube transport and for locking of the shutter of the camera, whereby the governing member has the shape of a linkage bar and is guided by the pin in a stationary guide cam having an operating circular section and a non-operating return section.

[ 1 Feb. 20, 1973 United States Patent Lange A ARRANGEMENTS FOR [56]References Cited UNITED STATES PATENTS FILMTRANSPORT, EXPOSURE LOCKINGAND RELEASING, WITH FLASHLIGHT-CUBE TRANSPORT ll/l96lTahchama................................95/3l MEANS AND SHUTTER LOCKINGMEANS [75] Inventor:

3,416,424 12/1968 Harvey...............,......... 3,487,758

Karl l-leinze Lange, Westphalia, Germany FOREIGN PATENTS OR APPLICATIONS[73] Assignee: Balda ,235,732 3/1967Germany..................................95/3l Primary Examiner-JosephF. Peters, Jr. Attorney-Sparrow and Sparrow Werke, PhotographischeGerate und Kunststaif, R. Gruta Komlnanditgesellschaft, BundeWestphalia, Germany June 4, 1971 57 ABSTRACT In a camera with means forsimultaneously locking and unlocking the film transport device and theexpo- [22] Filed:

[21] Appl. No.: 150,127

Related [1.8. Application Data [63] Continuation-impart of Ser. No.762,753, Sept. 29,

sure releasing mechanism, the disc-like transport handle has a pluralityof tooth-shaped driver means which l968,abandoned. are engageable by apin attached to a governing member for both the film transport deviceand the [30] Foreign Application Priority Data locking and unlockingdevice, further for the expo- Oct. 7, 1967 G sure-releasing mechanismand for means for a flash 94865 cube transport and for locking of theshutter of the camera, whereby the governing member has the shape of alinkage bar and is guided by the pin in a stationary guide cam having anoperating circular section and a non-operating return section.

12 Claims, 8 Drawing Figures 1 2 5 m H1 l 7 ,1 311C/ 5 bA9 953 o R G I:)L n M 5 l 9 3 9 b i C 3R A 1 l B m5 5 m9 3 m" m m a n .e u S l he... Clo .M U mm 1 .ll 2 8 5 55 ll I'll I PATENTED mam SHEETZUF 4 Fig.2

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INVENTORI i \ia.r\ Gina. Limag BY Sean-vow am! ArraQ ATTon as y gARRANGEMENTS FOR FILMTRANSPORT, EXPOSURE LOCKING AND RELEASING, WITHFLASHLIGHT-CUBE TRANSPORT MEANS AND SHUTTER LOCKING MEANSCROSS-REFERENCE TO RELATED APPLICATIONS This application is acontinuation-in-part of copendnow abandoned.

BACKGROUND OF THE INVENTION It is known to provide means in cameras forsimultaneously locking and unlocking the film transport device and theexposure releasing mechanism in order to avoid double exposures and halfor idle film advancing. Furthermore, it is known to lock simultaneouslyby a transport handle the shutter and to advance by correspondingintermediate means a so-called flash cube which usually contains fourflash bulbs and which is angularly advanced after an exposure has beenmade and is eventually replaced after all four bulbs have been spent.

Considerable difficulties are caused by the fact that the photographicfilm is wound on a. spool which increases its effective diameter by thespooling so that for a given length of the film, for example, ininstamatic cameras, determined by the perforations of the film, theangular advancement of the transport handle is changed, or is diminishedprogressively, respectively, and would cause a decreasing rotation ofthe flash cube and shutter-locking gear. Solutions of this problem havebeen proposed by using a special friction coupling but this has not beenfound to be entirely satisfactory in view of the higher costs and therather large forces of friction and locking. The present inventionrefers to a solution which avoids the disadvantages of the priorconstructions and is distinguished by its simplicity-and low costs inconnection with improved results.

SUMMARY OF THE INVENTION The invention relates to photographic camerasin general and to operating interlocking and releasing mechanisms forvarious functions of such cameras in particular.

According to the invention the construction of the camera provides thehandle (or wheel) of the film transport device with a plurality ofdrivers engageable by a pin of a governing member which is common forthe means for locking the film transport, and exposure releasingmechanism and also for advancing of the flash cube. The coupling of theflash cube is effective by a stationary guide cam containing anoperating section extending over a certain angle of rotation and anonoperating return section. By this construction a particular frictioncoupling with its inherent difficulties is avoided, and all parts can bevery closely assembled. Furthermore, the parts of the constructionarrangement can be produced simply and inexpensively by punching orstampingof sheet metal.

Objects and advantages of the invention will be set forth in parthereafter and in part will be obvious herefrom or may be learned bypracticing the invention and will clearly appear from the detaileddescription given below taken in connection with the accompanyingdrawing which forms part of this specification and illustrates merely byway of example an embodiment of the device of the invention, the samebeing realized and attained by means of the instrumentalities andcombinations pointed out in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS In the following description and inthe claims, parts will be identified by specific names for convenience,but such names are intended to be as generic in their application tosimilar parts as the art will permit. Like reference characters denotelike parts in the several figures of the drawing, in which FIG. 1 showsa plan view of the entire arrangement of the mechanism in the filmtransport starting position after releasing of the shutter of the camera(viewed from below);

FIG. 2 is a similar view as shown in FIG. 1, but for a position of themechanism during the return stroke of the governing member;

FIG. 3 is a section of the arrangement taken along line IIIIII of FIG.1;

FIG. 4 shows a detail of FIG. 1 concerning the hearing of the filmtransport wheel, taken along line IV-IV in FIG. 3;

FIG. 5 is a section of the arrangement taken along line VV in FIG. 1;

FIG. 6 is a detail of the locking mechanism in FIGS. 1 and 2, takenduring the operation of the exposure.

FIG. 7 shows in an exploded view, the operating members of the mechanismas shown in FIG. 3;

FIG. 8 shows in an exploded view, a part of the mechanism shown in FIG.5.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now in more detail tothe drawing illustrating a preferred embodiment by which the inventionmay be realized, there is in FIGS. 1, 2, and 7 a mounting plate 2fastened in a camera housing 1 at points 3,4,5,6, and 7 in a manner notshown in more detail. A slidable retainer body 8 (FIGS. 3,4, and 7) isfitted slidably into a pocket-like, dovetailed recess 9 of housing 1 insuch manner that it is firmly attached to the latter and that the axis10 of a pick-up sleeve 11 is coaxial with the spool of the film of thecamera (not shown in the drawing). Sleeve 11 has several keys 12 on theoutside thereof which cooperate with corresponding recesses 13 of thefilm transport wheel 14, forming an axially shiftable coupling.Transport wheel 14 has a bearing collar 15 rotatably supported in acorresponding bore of retainer 8, and has external gear teeth 16 on theperiphery thereof for operating it and for stopping the film transport.There is further a first set of internal gear teeth 17 for locking thereturn stroke and a second set of internal gear teeth 18 for theoperation of the cocking of the shutter of the camera (not shown in thedrawing) and for the indexing gear of the flash cube on the camera (alsonot shown in the drawing).

Sleeve 11 is supported in recesses 13 and further with the shaft-likeextension 19'thereof in a bore 20 of a cam plate 21. Extension 19carries a disc 22 on its upper end which is operable by a conventionallyknown mechanism (not shown in the drawing) for engaging and disengagingsleeve 11 with the film spool against the force of a spring 23. Camplate 21 is firmly fastened on plate 2 and has a guiding cam track 24thereon on the side facing transport wheel 14. Cam track 24 comprisessubstantially two sections. A section 25 of cam track 24 starts at point24 (in FIG. 2) which is circular and coaxial with the center oftransport wheel 14, and ends at point 26, where it continues into areturn section 27. Cam track 24 cooperates with the end 28a of a guidepin 28 which is fixedly aggached to one end of a governing bar member29, while the other end 28b of pin 28 cooperates with the second set 18of internal gear teeth of transport wheel 14.

The other end 30 of bar member 29 is pivotally connected with the arm 31of the shutter cocking wheel 32. A resilient arm 33 which may consist ofa plastic material may be integrally moulded with arm 33. The flash cubesocket 36 is moved with shutter cocking wheel 32 by arm 33 and by asystem of dogs 34,35. Transport wheel 14 is further located at 37 (FIG.2 at the center of circular section 25 of cam track 24. A hook-likeabutment 38 is provided near the center of bar member 29 (FIGS. 1,7),which is arranged to cooperate with a face 39 of a feeler and stop slidemember 40. The angularly bent-off end 31 (FIG. of slide member 40 feels"and engages the perforation 42 of the film 43 for stopping the filmtransport.

Slide member 40 has an angular flange 44 near the edge of face 39 and anopening 45. Furthermore slide member 40 has a third arm 46 with abent-off end 47 having an operating edge 48. Slide member 40 is guidedon three places, that is, in a slot 49 of housing 1, in a slot 50 inplate 2 and in a slot 51 of a bent-off flange 52 of plate 2 (FIGS. 5 and8). A catch lever 53 is cooperating with hole 45 in slide member 40(FIGS. l,2,5,8). Catch lever 53 is pivotally located at 54 and has anose 55 which can engage hole 45 in a proper position of slide member 40by the force of a spring 56. An arm 57 of catch lever 53 engages therounded end 59 of bar member 29 which is operated by a spring 60.

Slide member 40 is moved by one end 62 of a twoarm lever 63 which ispivotally mounted on a stud 64, while the other end 65 thereofcooperates with the end 66 of a release slide 67, which is pivotallymounted on a release rocker 70 for the release movement at link points68,69. Rocker 70 is rotatably supported in stationary bearings 71,72 inthe flanges 2a of plate 2 (FIG. 8). A release rod 74 is pivotallymounted at point 73. Rod 74 is connected with the actual release memberof the camera shutter (not shown in the drawing). A release Key 75 isconnected with release slide 67. Key 75 has a locking nose 76 whichoperates on the locking edge 77 of the bell crank arm 77a of a lockinglever 78 (FIGS. 4 and 6), which is swingably mounted on a pivot 79 atretainer body 8 and is moved by a spring 80. The

other arm of locking lever 78 has an angularly: arranged end 82 whichengages the gear teeth 16 of transport wheel 14 by the action ofoperating edge 48 of bent-off end 47 of slide member 40 for stopping thefilm transport. A return-checking lever 86 is mounted on a pivot 85 atbody 8 (FIGS. 4 and 7). Lever 86 is kept in the checking position by aspring 87 against internal gear teeth 17, thus preventing transportwheel 14 from being rotated in the reverse direction. Springs 80 and 87may be combined into one spring only by giving levers 78 and 86 acorrespondingly convenient shape because both levers are mounted onretainer body 8.

The operation of the mechanism is as follows:

By rotating film-transport wheel 14 in the direction of the arrow inFIGS. 1,2, and 4 (clockwise), end 28b of guide pin 28 (FIG. 3) which isfixedly attached on governing bar member 29, engages the teeth 18 of theinternal gear of wheel 14 and thereby moves bar member 29. Thereby flashcube socket 36 is rotated through 90 by the linkage connection at 30 atthe other end of bar 29 and by arm 31, and further by resilient arm 33which is connected with bevel gear 32. Arm 33 passes through a cut-out33a in plate 2 and moves one of the four dogs 34,35 of flash cube socket36. At the same instant the shutter of the camera is cocked by bevelgear 32.

The other end 28a of guide pin 28 is guided in cam track 24 of cam plate21 (FIG. 3). When pin end 28a has passed through point 26 (FIG. 7) andpin-end 28b has left internal gear teeth 18 of transport wheel 14,tension spring 60 tends to pull bar member 29 back to the startingposition thereof. However this is only partly performed on account ofnose 38 of bar member 29 abutting against slide member 40 (FIG. 2). Theshort return movement of bar member 29 is sufficient for pressing withrounded edge 59 against arm 57 of catch lever 53 and to rotate thelatter about pivotal point 54.

Slide member 40 is thereby released by nose 55- of catch lever 53, andslide member 40 abuts film 43 with its bent-off end 41 under the pullingforce of spring 61. When rotating of transport wheel 14 is continued,bentoff end 41 (the feeler finger) will engage a perforation hole 42 offilm 43.

Together with this operation the following actions take placesimultaneously:

1. Nose 38 of governing bar member 29 is unlocked by slide member 40 andbar 29 returns to its starting position by the force of tension spring60.

2. Catch lever 53 returns to its starting position by the force ofspring 56 but without engaging hole 45 in slide member 40 by nose 55 oflever 53.

3. Locking lever 78 is rotated about pivot 79 by operating edge 48 ofbent-off end 47 of slide member 40 (FIG. 2);

a. Thereby angular end 82 of locking lever 78 enters the area of teeth16 of external gear on transport wheel 14, locks the latter and thuslocks the further transport of the film.

b. Simultaneously, locking lever 78 unlocks the release key 75 fromlocking nose 76 by means of bell crank arm 77a. The camera can now beoperated.

When the exposure is released, that is, by pressing down release key 75,release slide 67 which is firmly attached to said release key, moves tothe right (in FIG. 5). The following actions will simultaneously occuras a result of this operation.

1. (ref. FIG. 5)

Release rocker 70 which is pivotally mounted on release slide 67 at linkpoints 68, 69, rotates in bearings 71, 72 of flange 2a of plate 2.Thereby pivot point 73 where release rocker 70 and shutter release rod74 are connected, rotates in bearings 71,72 and pushes shutter releaserod 74 downward. The shutter (not shown in the drawing) is therebyreleased.

2. (ref. FIG. 1)

The other end 66 of release slide 67 is located at the other end 65 oftwo-arm lever 63 which is swingably supported by pivot stud 64. On theend 62 of two-arm lever 63, the angular flange 44 of slide member 40 isbeing held. When release slide 67 is moved downward by pressing releasekey 75, end 62 together with slide member 40 moves upward. This movementcauses bent-off end 41 (the feeler finger) to be disengaged fromperforation 42 of film 43, and slide member 40 is returned to itsstarting position in which nose 55 of catch lever 53 engages hole 45 inslide member 40 thereby latching the latter.

3. (ref. FIG. 6)

Where release key is pushed down, locking nose 76 thereof passes bylocking edge 77 of bell crank arm 77a of locking lever 78, therebypreventing the return rotation of the latter and locking transport wheel14 of the film by means of angular end 82. Furthermore, slide member 40is disengaged with its operating edge 48 of third arm 46 thereof fromlocking lever 78 during the return movement of slide member 40 to thestarting position thereof. However, the locking of the film transportmust also be maintained when release key 75 is pressed. This isperformed in the following manner.

When release key 75 has been unlocked and returned to its startingposition, locking lever 78 is'unlocked by locking nose 76 and can berotated back by spring 80 to its own starting position. Thereby lockinglever 78 with its angular end 82 unlocks transport wheel 14 of the filmand at the same instant locks release key 75 by bell crank arm 77acooperating with locking nose 76. The cycle of operation can be startedagain with the operation of transport wheel 14 of film 43.

While the invention has been described. and illustrated with respect toa certain preferred example which gives satisfactory results, it will beunderstood by those skilled in the art after understanding the principleof the invention, that various other changes and modifications may bemade without departing from the spirit of the invention What is claimedis:

1. A camera having a take-up spool for a photographic film, exposuremeans having a shutter cocking device, said camera comprising firstmeans for transporting said film, second means for locking and unlockingsaid exposure means and for releasing said shutter cocking device, afilm transport handle disposed for being rotated about a pivot andhaving a variable stroke for each picture taken by said camera, saidstroke varying as a function of the effective diameter of said take-upspool, said effective diameter of said take-up spool being dependent onthe amount of film wound on said take-up spool, and having a devicegoverned by said handle for correctly controlling said stroke, aplurality of driving means on said film transport handle, said drivingmeans disposed to be engaged by a follower-pin, a pivotally and slidablymounted governing bar member, said follower pin attached to saidgoverning bar member for controlling the transport of said film and saidsecond means for locking and unlocking said exposure means and forcocking said shutter cocking device, a stationary guide cam for saidfollower-pin, said cam having a circular first section and areturn-and-disengaging second section, said pivot of said handle locatedin the center of said circular first section, said driving meansdisposed concentrically about said pivot, said follower pin engaged bysaid driving means while being engaged in said first section of said camand disengaged from said driving means while being engaged in saidsecond section of said cam, and resetting first spring means on saidfollower pin, said first spring means urging said pin into said firstsection of said cam and into engagement with said driving means and saidbar member performing said pivotal and shifting movement by having saidpin engaged in said cam, said movement induced by said rotation of saidfilm transport handle.

2. A camera according to claim 1, said camera further comprising arotatable flash cube socket for attaching a flash cube to the camera andmeans for transporting said flash cube socket, said means beingcontrolled by the slidably mounted governing bar.

3. A camera according to claim 2, and said governing member consistingof a bar member having two ends, having on oneend thereof said followerpin protruding from both sides of said bar member, one end of said pinengaging said driving means of said film transport handle and the otherend of said pin engaging said stationary guide'cam, said driving meansconsisting of a gear and said film transport handle consisting of awheel having gear teeth.

4. A camera according to claim 3, and a first arm and a resilient secondarm on said shutter cocking device, said bar member being pivotallymounted at the other end thereof on said first arm performing a rotationof substantially of said shutter cocking device and simultaneouslyadvancing said flash cube by said resilient second arm with each strokeof said bar member.

5. A camera according to claim 4, and a retainer body secured in saidcamera and a return locking lever on said body, said film transportwheel being supported by said body, said wheel having internal gearteeth, said return locking lever engaging said internal gear teeth forpreventing the latter from being rotated in the reverse direction andsaid body forming a structural unit with said first means fortransporting said film and said second means for unlocking and lockingsaid exposure means.

6. A camera according to claim 5, and having a bearing inside said filmtransport wheel having said internal gear teeth, said bearing supportingsaid return locking lever.

7. A camera according to claim 4, and a gear having external teeth andsaid resilient second arm connected with said shutter cocking device anddisposed for advancing said flash cube by said teeth of said gear.

8. A camera according to claim 7, said film having perforation holes,said second means for locking and unlocking said exposure meanscomprising a slide member slidably disposed at right angles to the planeof said film from a locking position to an unlocking position of saidfilm transport handle, a feeler on said slide member, said feelerengaging one of said perforation holes in said film when said secondmeans for locking and unlocking said exposure means is in the lockedposition, said slide member further having a hole,

spring means on said slide member for moving the same from the unlockedposition to the locked position thereof, a spring-loaded catch leverhaving an arm and a nose thereon, said nose disposed for engaging saidhole for returning said slide member in the unlocked position of saidfilm transport handle, said catch lever further having an armcooperating with said governing bar member for disengaging said catchlever from said slide member. when said follower pin has entered asecond section of said guide cam, a hook-like abutment in the centerpart of said bar member, said abutment cooperating with a locking faceof said slide member for preventing said bar member from returning tothe starting position thereof and for releasing said catch lever untilsaid slide member having reached said locking position of said filmtransport handle by said feeler having engaged one of such perforationholes of said film, and push means for returning said slide member tosaid unlocked position of said film transport handle against the forceof said spring means during the operation of said second means forlocking and unlocking said exposure means.

9. A camera according to claim 8, and said governing bar member having arounded end, said end disposed for cooperating with said arm of saidcatch lever.

'10. A camera according to claim 9, and a first angular flange on saidslide member, said second means for locking and unlocking said exposuremeans consisting of a release rocker, having a release slide with abentoff end and having a release rod, a twoarm lever pivotally mountedin said camera, said two-arm lever having two ends, one of said endsdisposed for pulling said first angular flange, the other one of saidends cooperating with said bent-off end of said release slide pivoted onsaid release rocker on which said release rod is also pivotally mounted,said rod leading to said second means for releasing said shutter cockingdevice of said camera, returning said slide member to said unlockedposition of said film transport handle by said two-arm lever at saidrelease of said shutter cocking device.

11. A camera according to claim 10, and a release key connected withsaid release slide, said release key having a locking nose, further alocking lever having a locking edge and a second end having a bent-offpart, said locking lever supported by said retainer body, and a secondspring driving said locking lever, said bent-off part engaging saidteeth of said gear of said film transport wheel by the edge of saidsecond bent-off end of said slide member for locking said film transporthandle.

12. A camera according to claim 11, and a third spring on said returnlocking lever, said third spring operating said return locking lever,said second spring of said locking lever and said third spring of saidreturn locking lever cooperating to provide a single resultant springforce. a

1. A camera having a take-up spool for a photographic film, exposuremeans having a shutter cocking device, said camera comprising firstmeans for transporting said film, second means for locking and unlockingsaid exposure means and for releasing said shutter cocking device, afilm transport handle disposed for being rotated about a pivot andhaving a variable stroke for each picture taken by said camera, saidstroke varying as a function of the effective diameter of said take-upspool, said effective diameter of said take-up spool being dependent onthe amount of film wound on said take-up spool, and having a devicegoverned by said handle for correctly controlling said stroke, aplurality of driving means on said film transport handle, said drivingmeans disposed to be engaged by a follower-pin, a pivotally and slidablymounted governing bar member, said follower pin attached to saidgoverning bar member for controlling the transport of said film and saidsecond means for locking and unlocking said exposure means and forcocking said shutter cocking device, a stationary guide cam for saidfollower-pin, said cam having a circular first section and areturn-and-disengaging second section, said pivot of said handle locatedin the center of said circular first section, said driving meansdisposed concentrically about said pivot, said follower pin engaged bysaid driving means while being engaged in said first section of said camand disengaged from said driving means while being engaged in saidsecond section of said cam, and resetting first spring means on saidfollower pin, said first spring means urging said pin into said firstsection of said cam and into engagement with said driving means and saidbar member performing said pivotal and shifting movement by having saidpin engaged in said cam, said movement induced by said rotation of saidfilm transport handle.
 1. A camera having a take-up spool for aphotographic film, exposure means having a shutter cocking device, saidcamera comprising first means for transporting said film, second meansfor locking and unlocking said exposure means and for releasing saidshutter cocking device, a film transport handle disposed for beingrotated about a pivot and having a variable stroke for each picturetaken by said camera, said stroke varying as a function of the effectivediameter of said take-up spool, said effective diameter of said take-upspool being dependent on the amount of film wound on said take-up spool,and having a device governed by said handle for correctly controllingsaid stroke, a plurality of driving means on said film transport handle,said driving means disposed to be engaged by a follower-pin, a pivotallyand slidably mounted governing bar member, said follower pin attached tosaid governing bar member for controlling the transport of said film andsaid second means for locking and unlocking said exposure means and forcocking said shutter cocking device, a stationary guide cam for saidfollower-pin, said cam having a circular first section and areturn-and-disengaging second section, said pivot of said handle locatedin the center of said circular first section, said driving meansdisposed concentrically about said pivot, said follower pin engaged bysaid driving means while being engaged in said first section of said camand disengaged from said driving means while being engaged in saidsecond section of said cam, and resetting first spring means on saidfollower pin, said first spring means urging said pin into said firstsection of said cam and into engagement with said driving means and saidbar member performing said pivotal and shifting movement by having saidpin engaged in said cam, said movement induced by said rotation of saidfilm transport handle.
 2. A camera according to claim 1, said camerafurther comprising a rotatable flash cube socket for attaching a flashcube to the camera and means for transporting said flash cube socket,said means being controlled by the slidably mounted governing bar.
 3. Acamera according to claim 2, and said governing member consisting of abar member having two ends, having on one end thereof said follower pinprotruding from both sides of said bar member, one end of said pinengaging said driving means of said film transport handle and the otherend of said pin engaging said stationary guide cam, said driving meansconsisting of a gear and said film transport handle consisting of awheel having gear teeth.
 4. A camera according to claim 3, and a firstarm and a resilient second arm on said shutter cocking device, said barmember being pivotally mounted at the other end thereof on said firstarm performing a rotation of substantially 90* of said shutter cockingdevice and simultaneously advancing said flash cube by said resilientsecond arm with each stroke of said bar member.
 5. A camera according toclaim 4, and a retainer body secured in said camera and a return lockinglever on said body, said film transport wheel being supported by saidbody, said wheel having internal gear teeth, said return locking leverengaging said internal gear teeth for preventing the latter from beingrotated in the reverse direction and said body forming a structural unitwith said first means for transporting said film and said second meansfor unlocking and locking said exposure means.
 6. A camera according toclaim 5, and having a bearing inside said film transport wheel havingsaid internal gear teeth, said bearing supporting said return lockinglever.
 7. A camera according to claim 4, and a gear having extErnalteeth and said resilient second arm connected with said shutter cockingdevice and disposed for advancing said flash cube by said teeth of saidgear.
 8. A camera according to claim 7, said film having perforationholes, said second means for locking and unlocking said exposure meanscomprising a slide member slidably disposed at right angles to the planeof said film from a locking position to an unlocking position of saidfilm transport handle, a feeler on said slide member, said feelerengaging one of said perforation holes in said film when said secondmeans for locking and unlocking said exposure means is in the lockedposition, said slide member further having a hole, spring means on saidslide member for moving the same from the unlocked position to thelocked position thereof, a spring-loaded catch lever having an arm and anose thereon, said nose disposed for engaging said hole for returningsaid slide member in the unlocked position of said film transporthandle, said catch lever further having an arm cooperating with saidgoverning bar member for disengaging said catch lever from said slidemember when said follower pin has entered a second section of said guidecam, a hook-like abutment in the center part of said bar member, saidabutment cooperating with a locking face of said slide member forpreventing said bar member from returning to the starting positionthereof and for releasing said catch lever until said slide memberhaving reached said locking position of said film transport handle bysaid feeler having engaged one of such perforation holes of said film,and push means for returning said slide member to said unlocked positionof said film transport handle against the force of said spring meansduring the operation of said second means for locking and unlocking saidexposure means.
 9. A camera according to claim 8, and said governing barmember having a rounded end, said end disposed for cooperating with saidarm of said catch lever.
 10. A camera according to claim 9, and a firstangular flange on said slide member, said second means for locking andunlocking said exposure means consisting of a release rocker, having arelease slide with a bent-off end and having a release rod, a two-armlever pivotally mounted in said camera, said two-arm lever having twoends, one of said ends disposed for pulling said first angular flange,the other one of said ends cooperating with said bent-off end of saidrelease slide pivoted on said release rocker on which said release rodis also pivotally mounted, said rod leading to said second means forreleasing said shutter cocking device of said camera, returning saidslide member to said unlocked position of said film transport handle bysaid two-arm lever at said release of said shutter cocking device.
 11. Acamera according to claim 10, and a release key connected with saidrelease slide, said release key having a locking nose, further a lockinglever having a locking edge and a second end having a bent-off part,said locking lever supported by said retainer body, and a second springdriving said locking lever, said bent-off part engaging said teeth ofsaid gear of said film transport wheel by the edge of said secondbent-off end of said slide member for locking said film transporthandle.